Swingle citrumelo seed vigor and storability associated with fruit maturity classes based on RGB parameters
| Autor: | Natália Arruda, Francisco Guilhien Gomes-Junior, Julio Marcos-Filho |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
0106 biological sciences
citrus rootstock fruit maturation seedling vigor 01 natural sciences computer vision Dry weight image analysis Color measurement Citrus rootstock lcsh:Agriculture (General) Water content Mathematics biology food and beverages Ripening 04 agricultural and veterinary sciences biology.organism_classification lcsh:S1-972 Agronomy Seedling Germination 040103 agronomy & agriculture 0401 agriculture forestry and fisheries RGB color model Animal Science and Zoology TORANJA Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Scientia Agricola, Vol 74, Iss 5, Pp 357-363 Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP Scientia Agricola v.74 n.5 2017 Scientia Agrícola Scientia Agricola, Volume: 74, Issue: 5, Pages: 357-363, Published: OCT 2017 |
| Popis: | Citrus seeds normally have low storability. Identifying an optimal fruit harvest time for production of high vigor seeds is important for nurseries; however, identifying this stage for Swingle citrumelo fruits has been based only on visual color examination, and research related to this parameter has been inconsistent. The main objective of this study was to evaluate a red-green-blue (RGB) color measurement system for successful identification of Swingle citrumelo fruits possessing seeds with maximum physiological potential and storability. Fruits were harvested at three ripening stages identified as green (G), greenish-yellow (GY), and yellow (Y) pericarp, photographed, and the images processed using ImageJ software. Data were expressed as the average pixel value of R, G and B color components and a mean RGB pixel value (R+G+B/3). After harvest, seeds were evaluated for water content, germination, seedling emergence, length, dry mass and vigor as measured by the Seed Vigor Imaging System - SVIS (uniformity and vigor indexes) after 0 and 5 months storage (5 °C and 65 % relative humidity). Percentage of ruptured coat seeds was also evaluated after extraction. The R color component provided the best identification of each G, GY and Y fruits. Seeds extracted from GY fruits had higher storage potential compared with seeds from G and Y fruits. Thus, precise fruit ripening classification can be generated using the RGB color system to identify the best time for harvest to obtain seeds with greater physiological and storage potential. |
| Databáze: | OpenAIRE |
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